public static Richtext Parse(BinaryReader reader)
{
var result = new Richtext();
// TODO: 解析富文本
try
{
var messageType = reader.ReadByte();
var dataLength = reader.BeReadUInt16();
var pos = reader.BaseStream.Position;
while (pos + dataLength < reader.BaseStream.Length)
{
reader.ReadByte();
switch (messageType)
{
case 0x01: // 纯文本消息、@
{
var messageStr = reader.BeReadString();
if (messageStr.StartsWith("@") && pos + dataLength - reader.BaseStream.Position == 16)
{
reader.ReadBytes(10);
result.Snippets.Add(new TextSnippet(messageStr, MessageType.At,
("Target", reader.BeReadLong32())));
}
else
{
result.Snippets.Add(messageStr);
}
break;
}
case 0x02: // Emoji(系统表情)
{
reader.BeReadUInt16(); // 这里的数字貌似总是1：系统表情只有208个。
result.Snippets.Add(new TextSnippet("", MessageType.Emoji, ("Type", reader.ReadByte())));
break;
}
case 0x03: // 图片
{
result.Snippets.Add(new TextSnippet(reader.BeReadString(), MessageType.Picture));
break;
}
case 0x0A: // 音频
{
result.Snippets.Add(new TextSnippet(reader.BeReadString(), MessageType.Audio));
break;
}
case 0x0E: // 未知
{
break;
}
case 0x12: // 群名片
{
break;
}
case 0x14: // XML
{
reader.ReadByte();
result.Snippets.Add(new TextSnippet(
GZipByteArray.DecompressString(reader.ReadBytes((int)(reader.BaseStream.Length - 1))),
MessageType.Xml));
break;
}
case 0x18: // 群文件
{
reader.ReadBytes(5);
var fileName = reader.BeReadString(); // 文件名称... 长度总是一个byte
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); // 文件大小
result.Snippets.Add(new TextSnippet(fileName, MessageType.OfflineFile));
break;
}
case 0x19: // 红包秘钥段
{
if (reader.ReadByte() != 0xC2)
{
break;
}
reader.ReadBytes(19);
reader.ReadBytes(reader.ReadByte()); // 恭喜发财
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); // 赶紧点击拆开吧
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); // QQ红包
reader.ReadBytes(5);
reader.ReadBytes(reader.ReadByte()); // [QQ红包]恭喜发财
reader.ReadBytes(22);
var redId = Encoding.UTF8.GetString(reader.ReadBytes(32)); //redid
reader.ReadBytes(12);
reader.ReadBytes(reader.BeReadUInt16());
reader.ReadBytes(0x10);
var key1 = Encoding.UTF8.GetString(reader.ReadBytes(reader.ReadByte())); //Key1
reader.BeReadUInt16();
var key2 = Encoding.UTF8.GetString(reader.ReadBytes(reader.ReadByte())); //Key2
result.Snippets.Add(new TextSnippet("", MessageType.RedBag, ("RedId", redId),
("Key1", key1), ("Key2", key2)));
break;
}
}
reader.ReadBytes((int)(pos + dataLength - reader.BaseStream.Position));
messageType = reader.ReadByte();
dataLength = reader.BeReadUInt16();
pos = reader.BaseStream.Position;
}
}
catch (Exception ex)
{
}
// 移除所有空白的片段
result.Snippets.RemoveAll(s => s.Type == MessageType.Normal && string.IsNullOrEmpty(s.Content));
// 若长度大于1，那么应该只含有普通文本、At、表情、图片。
// 虽然我看着别人好像视频也能通过转发什么的弄进来，但是反正我们现在不支持接收音视频，所以不管了
return(result.Snippets.Count > 1 && result.Snippets.Any(s =>
s.Type != MessageType.Normal && s.Type != MessageType.At &&
s.Type != MessageType.Emoji && s.Type != MessageType.Picture)
? throw new NotSupportedException("富文本中包含多个非聊天代码")
: result);
}
public static List <byte[]> WriteSnippet(TextSnippet snippet, int length)
{
// TODO: 富文本支持
var ret = new List <byte[]>();
var bw = new BinaryWriter(new MemoryStream());
switch (snippet.Type)
{
case MessageType.Normal:
{
if (length + 6 >= 699) // 数字应该稍大点，但是我不清楚具体是多少
{
length = 0;
ret.Add(new byte[0]);
}
bw.BaseStream.Position = 6;
foreach (var chr in snippet.Content)
{
var bytes = Encoding.UTF8.GetBytes(chr.ToString());
// 705 = 699 + 6个byte: (byte + short + byte + short)
if (length + bw.BaseStream.Length + bytes.Length > 705)
{
var pos = bw.BaseStream.Position;
bw.BaseStream.Position = 0;
bw.Write(new byte[] { 0x01 });
bw.BeWrite((ushort)(pos - 3)); // 本来是+3和0的，但是提前预留了6个byte给它们，所以变成了-3和-6。下同理。
bw.Write(new byte[] { 0x01 });
bw.BeWrite((ushort)(pos - 6));
bw.BaseStream.Position = pos;
ret.Add(bw.BaseStream.ToBytesArray());
bw = new BinaryWriter(new MemoryStream());
bw.BaseStream.Position = 6;
length = 0;
}
bw.Write(bytes);
}
// 在最后一段的开头补充结构
{
var pos = bw.BaseStream.Position;
bw.BaseStream.Position = 0;
bw.Write(new byte[] { 0x01 });
bw.BeWrite((ushort)(pos - 3));
bw.Write(new byte[] { 0x01 });
bw.BeWrite((ushort)(pos - 6));
bw.BaseStream.Position = pos;
}
break;
}
case MessageType.At:
break;
case MessageType.Emoji:
{
if (length + 12 > 699)
{
ret.Add(new byte[0]);
}
var faceIndex = Convert.ToByte(snippet.Content);
if (faceIndex > 199)
{
faceIndex = 0;
}
bw.Write(new byte[] { 0x02, 0x00, 0x14, 0x01, 0x00, 0x01 });
bw.Write(faceIndex);
bw.Write(new byte[] { 0xFF, 0x00, 0x02, 0x14 });
bw.Write((byte)(faceIndex + 65));
bw.Write(new byte[] { 0x0B, 0x00, 0x08, 0x00, 0x01, 0x00, 0x04, 0x52, 0xCC, 0x85, 0x50 });
break;
}
case MessageType.Picture:
break;
case MessageType.Xml:
break;
case MessageType.Json:
break;
case MessageType.Shake:
break;
case MessageType.Audio:
break;
case MessageType.Video:
break;
case MessageType.ExitGroup:
break;
case MessageType.GetGroupImformation:
break;
case MessageType.AddGroup:
break;
default:
throw new ArgumentOutOfRangeException();
}
if (bw.BaseStream.Position != 0)
{
ret.Add(bw.BaseStream.ToBytesArray());
}
return(ret);
}
public static Richtext Parse(BinaryReader reader)
{
var result = new Richtext();
// TODO: 解析富文本
try
{
var messageType = reader.ReadByte();
var dataLength = reader.BeReadChar();
var pos = reader.BaseStream.Position;
while (pos + dataLength < reader.BaseStream.Length)
{
reader.ReadByte();
switch (messageType)
{
case 0x01: //文本消息
{
var messageStr = Encoding.UTF8.GetString(reader.ReadBytes(reader.BeReadChar()));
if (messageStr.Contains("@"))
{
//Reader.ReadBytes(10);
//var AtQQ = Util.GetQQNumRetUint(Util.ToHex(Reader.ReadBytes(4)));//被At人的QQ号
result.Snippets.Add(new TextSnippet(messageStr, MessageType.At));
}
else
{
result.Snippets.Add(messageStr);
}
break;
}
case 0x02: //小黄豆表情
{
result.Snippets.Add(new TextSnippet(
Util.GetQQNumRetUint(Util.ToHex(reader.ReadBytes(reader.BeReadChar()))).ToString(),
MessageType.Emoji));
break;
}
case 0x03: //图片
{
result.Snippets.Add(new TextSnippet(
Encoding.UTF8.GetString(reader.ReadBytes(reader.BeReadChar())), MessageType.Picture));
break;
}
case 0x0A: //音频
{
result.Snippets.Add(new TextSnippet(Encoding.UTF8.GetString(reader.ReadBytes(reader.BeReadChar())), MessageType.Audio));
break;
}
case 0x0E: //未知
{
break;
}
case 0x12: //群名片
{
break;
}
case 0x14: //XML
{
reader.ReadByte();
result.Snippets.Add(new TextSnippet(GZipByteArray.DecompressString(reader.ReadBytes((int)(reader.BaseStream.Length - 1))), MessageType.Xml));
break;
}
case 0x18: //群文件
{
reader.ReadBytes(3);
var fileName = reader.ReadBytes(reader.ReadByte()); //文件名称
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); //文件大小
result.Snippets.Add(new TextSnippet(Encoding.UTF8.GetString(fileName),
MessageType.OfflineFile));
break;
}
case 0x19: //红包秘钥段
{
if (reader.ReadByte() != 0xC2)
{
break;
}
reader.ReadBytes(19);
reader.ReadBytes(reader.ReadByte()); //恭喜发财
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); //赶紧点击拆开吧
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); //QQ红包
reader.ReadBytes(5);
reader.ReadBytes(reader.ReadByte()); //[QQ红包]恭喜发财
reader.ReadBytes(22);
var redId = Encoding.UTF8.GetString(reader.ReadBytes(32)); //redid
reader.ReadBytes(12);
reader.ReadBytes(reader.BeReadChar());
reader.ReadBytes(0x10);
var key1 = Encoding.UTF8.GetString(reader.ReadBytes(reader.ReadByte())); //Key1
reader.BeReadChar();
var key2 = Encoding.UTF8.GetString(reader.ReadBytes(reader.ReadByte())); //Key2
result.Snippets.Add(new TextSnippet("", MessageType.RedBag, ("RedId", redId),
("Key1", key1), ("Key2", key2)));
break;
}
}
reader.ReadBytes((int)(pos + dataLength - reader.BaseStream.Position));
messageType = reader.ReadByte();
dataLength = reader.BeReadChar();
pos = reader.BaseStream.Position;
}
}
catch (Exception ex)
{
}
return(result);
}